package cn.fotoit.product.config;

import com.google.common.base.Predicate;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import springfox.documentation.RequestHandler;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

@Configuration
@EnableSwagger2 // 启用 Swagger
public class SwaggerConfig {
    @Value("${enableSwagger2}")
    private boolean enableSwagger2;

    @Bean
    public Docket createRestApi() {
        Predicate<RequestHandler> predicate = (RequestHandler input) -> {
            if (!enableSwagger2) {
                return false;
            }
            Class<?> declaringClass = input.declaringClass();
            if (declaringClass == BasicErrorController.class)// 排除
                return false;
            if (declaringClass.isAnnotationPresent(RestController.class)) // 被注解的类
                return true;
            if (input.isAnnotatedWith(ResponseBody.class)) // 被注解的方法
                return true;
            return false;

        };
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                .useDefaultResponseMessages(false)
                .select()
                .apis(predicate)
                .build();
    }

    private ApiInfo apiInfo() {
        return new ApiInfoBuilder()
                .title("方图文件管理系统")//大标题
                .version("1.0")//版本
                .build();
    }


}
